Water quality assessment of Rawanduz River and Gali Ali Beg stream by applied CCME WQI with survey aquatic insects (Ephemeroptera)

Nihal Suhail  Hanna; Yahya Ahmed  Shekha; Luay Abdul-Qader  Ali

doi:10.24996/ijs.2019.60.12.3

Authors

Nihal Suhail Hanna Department of Environmental Science, College of Science, Salahaddin University, Erbil
Yahya Ahmed Shekha Department of Environmental Science, College of Science, Salahaddin University, Erbil
Luay Abdul-Qader Ali Department of Biology, College of Education, Salahaddin University, Erbil

DOI:

https://doi.org/10.24996/ijs.2019.60.12.3

Keywords:

Water Quality, Rawanduz River, Ephemeroptera, CCME WQI

Abstract

The population of Ephemeroptera was studied in three selected stations of Rawanduz River (Gali Ali Beg water fall, Rawanduz River and after the junction of these two waters) during the three seasons of spring, summer and autumn in 2016. In addition,sixteen physicochemical parameters (pH, EC, turbidity, DO, BOD₅, NO₃, TDN, TDP, HCO₃^-, Hardness, Ca²⁺, Mg²⁺, Na⁺, K⁺, Cl^-, SO₄^2-, Na% and SAR) of water in these stations were estimated and used to calculate the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI). Eleven species of aquatic insects were identified,which belong to four families of the order Ephemeroptera. Three of the studied species are described for the first time. According to water quality index, the water was ranked as poor for drinking and marginal for irrigation purposes.